I am running a webapplication on Windows Server 2012 and have to run an endless loop in a PHP file. In order to control this, I created two batch files.
The PHP file:
<?php
while(true) {
sleep(10);
}
?>
BatchFile that calls the PHP file:
TITLE WatchdogStarterBATCH
php "%~dp0watchdog.php"
timeout 5
Batchfile 2
@ECHO OFF
:: Detect whether program is running
for /f "tokens=2 delims=," %%P in ('tasklist /v /fo csv ^| findstr /i "WatchdogStarterBATCH"') do set pid=%%~P
IF [%pid%] == [] (
:: Program not running, trying to restart
start "WatchdogStarterBATCH" "%~dp0WatchdogStarter.bat"
timeout 5
GOTO rerun
) ELSE (
:: Program is running
GOTO end
)
:rerun
:: Check whether program is running now
for /f "tokens=2 delims=," %%P in ('tasklist /v /fo csv ^| findstr /i "WatchdogStarterBATCH"') do set pid=%%~P
IF [%pid%] == [] (
:: Restart failed, log to database
php "%~dp0WatchdogErrorLogger.php"
) ELSE (
:: Restart successful, log to database
php "%~dp0WatchdogWarningLogger.php"
GOTO end
)
:end
echo Done.
timeout 5
Batchfile 2 is called by the Task Scheduler and then calles WatchdogStarter.bat as you can see. It tries to give this service a name, so that it can find it later in the tasklist.
Things I tried:
This is vbs.
Set WshShell = WScript.CreateObject("WScript.Shell")
Set objWMIService = GetObject("winmgmts:\\.\root\CIMV2")
Set objEvents = objWMIService.ExecNotificationQuery _
("SELECT * FROM Win32_ProcessStopTrace")
Do
Set objReceivedEvent = objEvents.NextEvent
msgbox objReceivedEvent.ProcessName
If lcase(objReceivedEvent.ProcessName) = lcase("Notepad.exe") then
Msgbox "Process exited with exit code " & objReceivedEvent.ExitStatus
WshShell.Run "c:\Windows\notepad.exe", 1, false
End If
Loop
What it does it waits for a program to exit (all programs) and if notepad (in the example) restarts it. You'd check for php.exe or whatever it's called.
Or use the following to get the command line and check by PID.
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * From Win32_Process")
For Each objItem in colItems
msgbox objItem.ProcessID & " " & objItem.CommandLine
Next
Use Instr to check for your PHP filename in command line and store the PID.
This would also work
Set WshShell = WScript.CreateObject("WScript.Shell")
Do
Return = WshShell.Run("notepad " & WScript.ScriptFullName, 0, true)
Loop
It starts notepad and waits for it to exit, then starts it again forever.
The same technique in batch
:ALabel
start "" /w notepad.exe
Goto ALabel